From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753040AbbKXITf (ORCPT ); Tue, 24 Nov 2015 03:19:35 -0500 Received: from verein.lst.de ([213.95.11.211]:54214 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752161AbbKXITe (ORCPT ); Tue, 24 Nov 2015 03:19:34 -0500 Date: Tue, 24 Nov 2015 09:19:32 +0100 From: Christoph Hellwig To: Andreas Herrmann Cc: Jens Axboe , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [RFC] blk-mq and I/O scheduling Message-ID: <20151124081932.GA30083@lst.de> References: <20151119120235.GA7966@suselix.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20151119120235.GA7966@suselix.suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andreas, I don't understand the time slicing algorithm to well, but from the blk-mq integration perspective this looks nice, and anything that helps improving blk-mq for spinning rust is useful. As a nitpick some of the larger "if (use_time_slice)" blocks should be moved into separate helper functions